Description Aquatec 8800 Series Pumps are used in RO systems with flow rates greater than 50 GPD. Reverse osmosis systems require pressure to work properly. A booster pump is suggested for applications where the feed water pressure is low, and where there are high levels of Total Dissolved Solids (TDS) in the water. The 8852-2J03-B423 is designed for operation with a tank shut-off switch (PSW), which shuts off the RO booster pump when the storage tank becomes full. In under-counter RO systems the PSW can be coupled with an Electronic Shut-Off valve (ESO) in order to shut off the feed supply so the system does not waste water. Features: Outstanding toughness, durability EMI/RFI electronic noise suppression Expels trapped air and eliminates "air locks" Pumphead can be mounted up or down Improved venting system removes moisture Corrosion resistant exterior Specifications: Connections: 3/8" QC Rated for 4,000+ operating hours (excludes idle/off time) Outlet pressures up to 125 PSI Extremely quiet operation, less than 52 DBA Runs dry without damage Self-priming, 60 inch lift Low voltage (24V) for maximum safety Additional Specifications: For the best experience, the following accessories are recommended for purchase with your RO booster pump:8800 Series Transformer 120V/24VAC (US) - (required) connects pump to electrical outlet to provide powerTank Pressure shut-off switch w/ wire harness - shuts off booster pump when RO tank is fullElectronic Shut-off Solenoid (ESO) Valve w/ QC fittings - connects to tank pressure shut-off switch to close off the feed water source when RO tank is fullWire harness assembly - required when using electronic shut-off valve Pick up address : 1710 Avenue Y Brooklyn, NY 11235 If listed then available.